package com.atguigu.eduservice.controller;


import com.atguigu.commonutils.R;
import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.entity.vo.TeacherQuery;
import com.atguigu.eduservice.service.EduTeacherService;


import com.atguigu.servicebase.execptionhandler.GuliException;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.List;

/**
 * @author Michael
 * @since 2020-05-30
 */
@RestController
@RequestMapping("/eduservice/edu-teacher")
public class EduTeacherController {
  // 访问地址 http://localhost:8001/eduservice/edu-teacher/findAll
  // 把service注入
  @Autowired
  private EduTeacherService teacherService;

  // 1 查询讲师表所有数据
  // rest风格
  @ApiOperation(value = "所有讲师列表")
  @GetMapping("findAll")
  public R findAllTeacher() {
    // 调用service的方法实现查询 所有的操作
    List<EduTeacher> list = teacherService.list(null);

    return R.ok().data("items", list);
  }

  // 逻辑删除讲师方法
  @ApiOperation(value = "逻辑删除讲师")
  @DeleteMapping("{id}")
  public R removeTeacher(@ApiParam(name = "id", value = "讲师ID", required = true) @PathVariable String id) {
    boolean flag = teacherService.removeById(id);

    if (flag) {
      return R.ok();
    } else {
      return R.error();
    }

  }

  // 分页查询讲师的方法
  // current 当前页
  // limit 每页记录数
  @GetMapping("pageTeacher/{current}/{limit}")
  public R pageListTeacher(@PathVariable long current, @PathVariable long limit) {
    // 插件page对象
    Page<EduTeacher> pageTeacher = new Page<>(current, limit);

    try {
      int i = 10 / 0;
    } catch (Exception e) {
      // 执行自定义异常
      throw new GuliException(20001, "执行了自定义异常处理...");
    }
    // 调用方法实现分页
    // 调用方法时，底层封装，把分页所有数据封装到pageTeacher对象里面
    teacherService.page(pageTeacher, null);
    long total = pageTeacher.getTotal();// 总记录数
    List<EduTeacher> records = pageTeacher.getRecords();  // 数据list集合

    // 方法1
    /*HashMap map = new HashMap();
    map.put("total", total);
    map.put("records", records);
    return R.ok().data(map);*/

    // 方法2
    return R.ok().data("total", total).data("rows", records);

  }

  // 4 分页条件查询
  @PostMapping("pageTeacherCondition/{current}/{limit}")
  public R pageTeacherCondition(@PathVariable long current, @PathVariable long limit, @RequestBody(required = false) TeacherQuery teacherQuery) {
    // 创建page对象
    Page<EduTeacher> pageTeacher = new Page<>();
    // 构建条件
    QueryWrapper<EduTeacher> wrapper = new QueryWrapper<>();
    // 多条件组合查询
    // mybatis 动态sql
    // 判断条件值是否为空 ，如果不为空拼接条件
    String name = teacherQuery.getName();
    Integer level = teacherQuery.getLevel();
    String begin = teacherQuery.getBegin();
    String end = teacherQuery.getEnd();
    // 判断条件值是否为空 ，如果不为空拼接条件

    if (!StringUtils.isEmpty(name)) {
      // 构建条件
      wrapper.like("name", name);
    }

    if (!StringUtils.isEmpty(level)) {
      wrapper.eq("level", level);
    }

    if (!StringUtils.isEmpty(begin)) {
      wrapper.ge("gmt_create", begin);
    }
    if (!StringUtils.isEmpty(end)) {
      wrapper.le("gmt_create", end);
    }

    // 调用方法实现条件分页查询
    teacherService.page(pageTeacher, wrapper);
    long total = pageTeacher.getTotal();// 总记录数
    List<EduTeacher> records = pageTeacher.getRecords();  // 数据list集合

    return R.ok().data("total", total).data("rows", records);
  }

  // 4 分页条件查询
 /* @GetMapping("pageTeacherCondition/{current}/{limit}")
  public R pageTeacherCondition(@PathVariable long current, @PathVariable long limit, TeacherQuery teacherQuery) {
    // 创建page对象
    Page<EduTeacher> pageTeacher = new Page<>();
    // 构建条件
    QueryWrapper<EduTeacher> wrapper = new QueryWrapper<>();
    // 多条件组合查询
    // mybatis 动态sql
    // 判断条件值是否为空 ，如果不为空拼接条件
    String name = teacherQuery.getName();
    Integer level = teacherQuery.getLevel();
    String begin = teacherQuery.getBegin();
    String end = teacherQuery.getEnd();
    // 判断条件值是否为空 ，如果不为空拼接条件

    if (!StringUtils.isEmpty(name)) {
      // 构建条件
      wrapper.like("name", name);
    }

    if (!StringUtils.isEmpty(level)) {
      wrapper.eq("level", level);
    }

    if (!StringUtils.isEmpty(begin)) {
      wrapper.ge("gmt_create", begin);
    }
    if (!StringUtils.isEmpty(end)) {
      wrapper.le("gmt_create", end);
    }

    // 调用方法实现条件分页查询
    teacherService.page(pageTeacher, wrapper);
    long total = pageTeacher.getTotal();// 总记录数
    List<EduTeacher> records = pageTeacher.getRecords();  // 数据list集合

    return R.ok().data("total", total).data("rows", records);
  }*/

  // 5 添加讲师接口的方法
  @PostMapping("addTeacher")
  public R addTeacher(@RequestBody EduTeacher eduTeacher) {
    boolean save = teacherService.save(eduTeacher);

    if (save) {
      return R.ok();
    } else {
      return R.error();
    }
  }

  // 6 根据讲师id进行查询
  @GetMapping("getTeacher/{id}")
  public R getTeacher(@PathVariable String id) {
    EduTeacher eduTeacher = teacherService.getById(id);
    return R.ok().data("teacher", eduTeacher);

  }

  // 讲师修改功能
  @PostMapping("updateTeacher")
  public R updateTeacher(@RequestBody EduTeacher eduTeacher) {
    boolean flag = teacherService.updateById(eduTeacher);
    if (flag) {
      return R.ok();
    } else {
      return R.error();
    }

  }
}

